You can not only solve the problem, however, create problems for yourself, like you!
How many people were challenged with a problem that they have created?
Were you able to many people to answer the problems that they have created?
The review also found for the problems they have created!
Solve the quiz that people have posted, I solve the quiz that you have submitted,
I will compete with each other in all the knowledge! !
I can play with the app without user registration,
When you register, you will be able to review such posts and the problem.
User registration, you can now simply by entering a user name, login ID, password!
※ For now, change the user name, login ID, the password can not be
※ Be careful not to forget the password will be
When you register a user once, you can use the account in other posts quiz app.